NASA is set to launch an incredible new atomic clock into orbit on a Falcon Heavy today (June 24) in a technology demonstration mission that could transform the way humans explore space. The Deep ...

Atomic clocks are the most precise timekeepers we have today, with the best ones keeping time to within one second in 15 billion years. But there’s always room for improvement, as researchers at MIT ...

On Earth, knowing the time feels simple. Your phone pings the same second as a GPS satellite and an atomic clock in a lab.

Poland has just started up one of the few optical atomic clocks in the world that puts old cesium fountain atomic clocks to shame. Share on Facebook (opens in a new window) Share on X (opens in a new ...

The official definition of the second is set to be updated for the first time in decades. The change will be based on new ...

NIST scientists have published results establishing a new atomic clock, NIST-F4, as one of the world’s most accurate timekeepers, priming the clock to be recognized as a primary frequency standard — ...

WASHINGTON — Atomic scientists on Tuesday kept their “Doomsday Clock” set as close to midnight as ever before, citing Russia’s actions on nuclear weapons amid its invasion of Ukraine, nuclear-armed ...

At 10 a.m. ET today, scientists will announce whether the events of the past year have brought humanity closer to, or further away from, self-annihilation. For the last three years, the Doomsday Clock ...

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A research team at VTT MIKES has set a new record in optical-clock absolute frequency measurements using a strontium ...